What are the control methods for common diseases of the clivia?
The clivia is a household name among flowers, and it is renowned in the floral world. This flower is very suitable for growing indoors at home. Its leaves are thick and long, and its flowers are very beautiful, appearing in orange-yellow. Growing the clivia still requires a bit of skill, so when cultivating it we will inevitably run into problems such as pests and diseases. So below, Shuashuai will tell everyone how to prevent and control them!
1. Leaf spot disease
Leaf spot disease is a disease that can turn plant leaves black. This disease generally only attacks the leaf portion of the plant. At the beginning, leaf spot disease appears on the leaves as chlorotic yellow spots, and then these spots become more and more numerous, gradually spreading to the surrounding area, damaging the entire leaf, then causing the leaf to become very dry, then dehydrate, and finally die. Leaf spot disease is generally caused by fungi. This pathogen will choose the plant's leaves to parasitize, then reproduce and spread. Leaf spot disease generally occurs from July to October.
Control method: Once an infected leaf is found, it must be eliminated promptly. If it is discovered right away, wipe it off with a rag or other tool, and do not let it remain on the leaf, reducing the residual pathogen as much as possible so that there are fewer pathogens. Usually strengthen the air circulation in the room so that the air can flow, reducing opportunities for bacteria to arise and reproduce. In addition, use chemical means for control. In the early stage of the disease, once it is found, carbendazim spray and amobam solution can be used for spraying, using it about 3 times consistently, with an interval of one week between each use; this can kill bacteria very effectively.
2. Anthracnose
Anthracnose is one of the more common diseases in the process of growing the clivia. At the beginning of the disease, some light brown small spots appear on the leaves. At first there are only a few small spots, and slowly, as time goes on, there will be more and more, slowly expanding to the surrounding area. Most of the spots are semicircular in shape. If the humidity in the air is relatively high, it will also produce a pinkish substance, which is also caused by anthracnose. The incidence is highest and most severe in rainy and humid climates.
Control method: When cultivating the clivia, do not apply excessive nitrogen fertilizer. Appropriately apply some phosphorus and potassium fertilizer. These trace element fertilizers can improve the plant's disease resistance and immunity, making its ability to resist pathogens stronger. At the same time, ensure indoor air circulation. When diseased branches and leaves are found, they should be cut off promptly and deeply buried in the soil, reducing the amount of pathogen sources as much as possible. During the period when the disease occurs, spray more carbendazim-type medicines to kill the pathogens.
3. Bacterial soft rot
Soft rot is also one of the very common diseases of the clivia. Soft rot mainly attacks the leaf and stem parts of the clivia. At the beginning, the main symptom is dark green water-soaked lesions, which then slowly increase in size, multiply more, and expand to the surrounding area. By the later stage of the disease, the entire leaf droops and wilts, and the leaf becomes dry and rotten. With just a slight pull on the leaf or root stem, it will be found to break off at once, because the tissues, organs and cells have all been softened, and finally the plant dies.
Control method: This disease is still considered a rather frightening one. In its later stage, it can directly cause the death of the whole plant, so more attention must be paid to it. We can strengthen cultivation management and improve cultivation methods. When watering, water from the edge of the pot so that the water slowly flows into the soil. At the same time, also control scale insects. During cultivation, strictly control the quality of the soil and the quality of the fertilizer to ensure that they have no pathogens and that the chance of infection is low. Various tools and substrates must be disinfected before use, so as to eliminate all possible sources of pathogens. In addition, some Bordeaux mixture can be sprayed to sterilize.
The above are the control methods for common pests and diseases of the clivia. Do the clivias you are growing suffer from any of the above diseases? To prevent such diseases, everyone should take more precautions and control all possible environmental factors. The clivia mainly has many diseases; its pest problems are very few. As long as these environmental factors are well controlled, there will be no problem.